com.graphhopper.matching

Class LocationIndexMatch

java.lang.Object

com.graphhopper.storage.index.LocationIndexTree

com.graphhopper.matching.LocationIndexMatch

All Implemented Interfaces:

com.graphhopper.storage.index.LocationIndex, com.graphhopper.storage.Storable<com.graphhopper.storage.index.LocationIndex>, Closeable, AutoCloseable

public class LocationIndexMatch
extends com.graphhopper.storage.index.LocationIndexTree

Author:

Peter Karich

Nested Class Summary

Nested classes/interfaces inherited from class com.graphhopper.storage.index.LocationIndexTree

com.graphhopper.storage.index.LocationIndexTree.XFirstSearchCheck

Field Summary

Fields inherited from class com.graphhopper.storage.index.LocationIndexTree

distCalc, graph, keyAlgo

Constructor Summary

Constructors

Constructor and Description
LocationIndexMatch(com.graphhopper.storage.GraphHopperStorage graph, com.graphhopper.storage.index.LocationIndexTree index)

Method Summary

Modifier and Type	Method and Description
List<com.graphhopper.storage.index.QueryResult>	findNClosest(double queryLat, double queryLon, com.graphhopper.routing.util.EdgeFilter edgeFilter, double radius) Returns all edges that are within the specified radius around the queried position.

Methods inherited from class com.graphhopper.storage.index.LocationIndexTree

close, create, findClosest, findNetworkEntries, findNetworkEntriesSingleRegion, flush, getCapacity, getDeltaLat, getDeltaLon, getMinResolutionInMeter, isClosed, loadExisting, prepareIndex, setApproximation, setMaxRegionSearch, setMinResolutionInMeter, setResolution, setSegmentSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LocationIndexMatch

public LocationIndexMatch(com.graphhopper.storage.GraphHopperStorage graph,
                          com.graphhopper.storage.index.LocationIndexTree index)

Method Detail

findNClosest

public List<com.graphhopper.storage.index.QueryResult> findNClosest(double queryLat,
                                                                    double queryLon,
                                                                    com.graphhopper.routing.util.EdgeFilter edgeFilter,
                                                                    double radius)

Returns all edges that are within the specified radius around the queried position. Searches at most 9 cells to avoid performance problems. Hence, if the radius is larger than the cell width then not all edges might be returned.

Overrides:

findNClosest in class com.graphhopper.storage.index.LocationIndexTree

Parameters:

radius - in meters